similar to: [LLVMdev] Set alignment of a structure?

>> Is it possible to set the alignment of a StructType in llvm? > > Nope. If this is for a global variable (For example), you build the > ConstantStruct with a type that ensures that the elements get the > right offsets, then you put the alignment on the GlobalVariable itself. That is unfortunate for a few reasons, (1) I am generating multi-threaded code, and I want to use

On May 7, 2009, at 8:53 AM, Nick Johnson wrote: > Hello, > > Is it possible to set the alignment of a StructType in llvm? Nope. If this is for a global variable (For example), you build the ConstantStruct with a type that ensures that the elements get the right offsets, then you put the alignment on the GlobalVariable itself. -Chris

Let me clarify my question. I have a struct array h1 as follows: dhash h1[10]; I want to get a Constant* to variable h1. It looks like I can use ConstantStruct::get(StructType*, ArrayRef<Constant *>) to do this. My question is how to get the second argument of type ArrayRef<Constant *> from the above variable h1. Thanks, Chaitra ________________________________ From: Tim Northover

On May 7, 2009, at 9:58 AM, Nick Johnson wrote: >>> Is it possible to set the alignment of a StructType in llvm? >> >> Nope. If this is for a global variable (For example), you build the >> ConstantStruct with a type that ensures that the elements get the >> right offsets, then you put the alignment on the GlobalVariable >> itself. > > That is

Hello, I would like to create a global variable for the following struct array, h1 dhash* h1 = new dhash[10]; typedef struct dhash{ char* filenm; dlist* llist; }dhash; typedef struct dlist{ int soffst; int eoffst; uint8_t* dptr; }dlist; I also need to allocate space for: 1) the field llist in struct dhash which is a pointer to another struct dlist and 2) the field

On Mon, 7 Mar 2005, John Carrino wrote: > As far as I can tell, when you construct a type using the support > library StructType::get, you have to pass in a list of types. How can > you make a Recursive type by passing in a pointer to the type you are > constucting. > > An example where something really simple like the line below was output > would be perfect. > >

I'd like to be able to make use of a structure type and its fields before it is completely defined. To be specific, let me ask detailed questions at various stages in the construction of a recursive type. I copy from http://llvm.org/docs/ProgrammersManual.html#TypeResolve // Create the initial outer struct PATypeHolder StructTy = OpaqueType::get(); Is it possible to declare

>> An example where something really simple like the line below was output >> would be perfect. >> >> %struct.linked_list = type { %struct.linked_list*, %sbyte* } > > Use something like this: > > PATypeHolder StructTy = OpaqueType::get(); > std::vector<const Type*> Elts; > Elts.push_back(PointerType::get(StructTy)); >

Thanks for the information I am trying to use one of your examples for recursive data structures: ========================= PATypeHolder StructTy = OpaqueType::get(); std::vector<const Type*> Elts; Elts.push_back(PointerType::get(StructTy)); Elts.push_back(PointerType::get(Type::SByteTy)); StructType *NewSTy = StructType::get(Elts); // At this point, NewSTy = "{ opaque*, sbyte*

On Tue, 15 Mar 2005, xavier wrote: > Thanks for the information > I am trying to use one of your examples for recursive data structures: > > ========================= > PATypeHolder StructTy = OpaqueType::get(); > std::vector<const Type*> Elts; > Elts.push_back(PointerType::get(StructTy)); > Elts.push_back(PointerType::get(Type::SByteTy)); > StructType *NewSTy =

On 25 June 2011 13:00, Duncan Sands <baldrick at free.fr> wrote: >> 3. Clang/dragonegg need to adapt to the new API (help appreciated!) > > what needs to be done exactly? Background info: http://www.nondot.org/sabre/LLVMNotes/TypeSystemRewrite.txt As I understand it, PATypeHolder, OpaqueType and the Module's TypeSymbolTable are gone. Instead, StructTypes can optionally be

On Thu, 12 Jun 2008 16:05:19 -0400, Gordon Henriksen wrote: > > Partially opaque types can be refined. This section of the programmer's > manual is applicable: > > http://llvm.org/docs/ProgrammersManual.html#BuildRecType > > — Gordon Here it is: : // Create the initial outer struct : PATypeHolder StructTy = OpaqueType::get(); : std::vector<const Type*> Elts; :

On Tue, 8 Mar 2005, Vladimir Merzliakov wrote: >>> An example where something really simple like the line below was output >>> would be perfect. >>> >>> %struct.linked_list = type { %struct.linked_list*, %sbyte* } >> >> Use something like this: >> >> PATypeHolder StructTy = OpaqueType::get(); >> std::vector<const

Hi All, I'm new to LLVM and I'm having a coding problem. I'm creating a GlobalVariable that contains a StructType that contains a Function. The function returns i32 and takes two i32's. Here is my code: GlobalVariable* retrieved = module->getGlobalVariable("myGV"); ... Constant* result = ConstantExpr::getGetElementPtr(retrieved, indices); How do I get my Function

As far as I can tell, when you construct a type using the support library StructType::get, you have to pass in a list of types. How can you make a Recursive type by passing in a pointer to the type you are constucting. An example where something really simple like the line below was output would be perfect. %struct.linked_list = type { %struct.linked_list*, %sbyte* } Thanks for any help,

Hey guys, I could use some advice on a special case of a function pointer as a formal argument. I would like the function pointer type to contain the actual signature of the function, i.e. not a pointer to var args function. This becomes an issue when I have a function which can take a pointer to itself as an argument... our terminology for this is "a recursive procedure". That is, of

On Fri, Sep 12, 2008 at 9:35 AM, Hendrik Boom <hendrik at topoi.pooq.com> wrote: > I'd like to be able to make use of a structure type and its fields before > it is completely defined. To be specific, let me ask detailed questions > at various stages in the construction of a recursive type. I copy from > > http://llvm.org/docs/ProgrammersManual.html#TypeResolve > >

Chris, On Thu, May 7, 2009 at 7:20 PM, Chris Lattner <clattner at apple.com> wrote: > nd what you're saying. LLVM can and does already > express this, just in a different form. Why does this need to be in > the type? I misunderstood your earlier email. Now I understand. Setting alignment on a global variable will work for many of my needs. However, say I need to construct

Thank you very much. The code to initialize h1 to non-zero values was what I was looking for. It's almost working except for a type mismatch wrt dlist* llist field of h1. dlist static_lst[10] = { {1, 5, NULL}, ... }; dhash h1[10] = {{"myfile.txt", static_lst}, ... }; Along the lines of the code you had sent, I created a GlobalVariable* llist of type [10 x %struct.dlist]* for the

I have code that uses OpaqueType::get(), it was used to be in llvm/IR/DerivedType.h , but it is removed now. What should I use for it replacement. Also, it is using #include <llvm/Bytecode/WriteBytecodePass.h> , but I do not found any WriteBytecodePass.h in my source code. Please tell me, what should I use in replacement of these. Thanks& Regards, Ratnesh Tiwari -------------- next